JP2014001794A - Fire hose - Google Patents

Abstract

PROBLEM TO BE SOLVED: To add characteristics of strength, flexibility and elasticity required for a fire-fighting tactics using narrow place winding to a fire hose.SOLUTION: A fire hose 10 which guides a fire extinguisher from a fire extinguisher supply part S to a water discharging nozzle T, comprises: a hose body 20 having a shape where a proximal end side tubular jacket 30 having a twill weave structure and a distal end side tubular jacket 40 having a plain weave structure are communicated; an inflow part 50 which is provided while communicating with a proximal end portion of the hose body 20 and formed to be attached to and detached from the fire extinguisher supply part S; an outflow part 60 which is provided while communicating with a distal end portion of the hose body 20 and formed to be attached to and detached from the water discharging nozzle T; and a reinforcing part 70 which is positioned in a boundary P between the proximal end side tubular jacket 30 and the distal end side tubular jacket 40 and reinforces the boundary P.

Description

  The present invention relates to a fire hose, and more particularly to a technique for achieving both strength and flexibility.

  In the event of a fire in an urban house or building, indoor fire fighting may be required. In that case, it is necessary to extend the hose indoors or in a narrow place such as a stair landing. The length of a normal fire hose is 20m, and if the hose is broken during water flow, the water flow will be affected. Therefore, it is necessary to carry out water flow and fire fighting activities with 20m extended. There is. As a use of the hose in the above-mentioned narrow place (narrow place), a fire fighting strategy from a narrow place hose is known.

  Narrow place winding means that the hose can be folded in a small state around the water discharge side of the hose and transported to a fire extinguishing site by hand, and the hose can be deployed in a narrow place so that water can flow quickly and reliably. How to wind. The hose wound in a narrow space is transported to a fire fighting place and spread to allow water to pass through the narrow space. After that, it is connected to a pump such as a fire-fighting vehicle and connected to a hose that has been transported to the fire fighting site. In this state, water flow begins, and the hose that has been extended becomes circular due to water pressure, and is in a state of being wound around a tuna. A water discharge nozzle or the like is connected to the center (male bracket) side of the hose that is in a rounded state, and the member pulls out the nozzle and extinguishes to the fire point.

  In the fire fighting tactic using such a narrow winding, the following fire hose is required. In other words, in a narrow space, the flexibility to fold a hose long enough to perform fire fighting activities, the flexibility to form a beautiful pomegranate shape when passing water, and on the road or floor when performing fire fighting activities And strength to withstand the friction.

  As a structure of a fire hose that satisfies these requirements, a twill weave structure or a plain weave structure jacket is known (for example, see Patent Document 1). The twill-woven jacket is soft and has sufficient flexibility and flexibility required for narrow winding. On the other hand, the plain weave jacket is hard and has sufficient strength to withstand friction during fire fighting activities.

JP 2008-036027 A (paragraph numbers [0009 to 0017])

  The fire hose described above has the following problems. In other words, a fire hose with a twill-woven jacket is sufficiently flexible and supple, but because of the softness of the ground, friction with the road surface (floor surface or stairs) when performing fire fighting activities Does not have sufficient strength to withstand

  Fire hoses with plain weave construction jackets are strong enough to withstand friction with the road surface during fire fighting activities, while the hardness of the ground is sufficient to wind tight places Flexible and supple. For this reason, there has been a problem that the characteristics of strength, flexibility, and flexibility required for a fire fighting tactic using narrow winding cannot coexist.

  Therefore, an object of the present invention is to provide a fire hose having the strength, flexibility, and flexibility characteristics required for a fire fighting tactic using narrow winding.

  In order to solve the problems and achieve the object, the fire hose of the present invention is configured as follows.

  In the fire hose for guiding the fire extinguisher from the fire extinguisher supply unit to the water discharge nozzle, a hose body having a shape in which the base end side cylindrical jacket having a twill weave structure and a tip end side cylindrical jacket having a plain weave structure communicate with each other; Provided in communication with the base end portion of the hose body, and provided in communication with the inflow portion formed to be detachable from the fire extinguishing agent supply portion and the tip portion of the hose body, and for discharging water It has an outflow part formed detachably with the nozzle, and a reinforcing part positioned at a boundary part of the base end side cylindrical jacket and the tip end side cylindrical jacket and reinforcing the boundary part.

  According to the present invention, it is possible to make the fire hose coexist with the characteristics of strength, flexibility, and flexibility required for a fire fighting strategy using narrow winding.

The side view which shows the hose for fire fighting which concerns on one embodiment of this invention. Explanatory drawing which shows the hose for fire fighting wound narrowly.

  FIG. 1 is a side view showing a fire hose 10 according to an embodiment of the present invention, and FIG. 2 is an explanatory view showing the fire hose 10 wound in a narrow space.

  The fire hose 10 includes a cylindrical hose body 20, an inflow portion (female fitting) 50 provided in fluid-tight communication with the opening on the proximal end 21 side of the hose body 20, and the distal end 22 side of the hose body 20. And an outflow portion (male bracket) 60 provided in fluid-tight communication with the opening. The base end side of the female fitting 50 can be detachably attached to the fire extinguisher supply unit S, and the distal end side of the male fitting 60 can be attached to and detached from the water discharge nozzle T in a liquid tight manner. The fire extinguisher supply unit S includes a fire hydrant S1 that supplies a fire extinguisher and a guide hose S2 that guides the female fitting 50 to the fire extinguisher. In addition, a fire extinguisher is a substance used for fire extinguishing, such as water, and powder etc. are contained besides water.

  Hereinafter, the structure and properties of the hose body 20 will be described in detail. The hose body 20 includes a base-end side tubular jacket 30 having a twill-woven fabric formed in a tubular shape and a tip-side tubular jacket 40 having a plain-woven structure formed in a tubular shape in a liquid-tight manner. It is connected and formed integrally. A reinforcing cloth 70 is integrally formed on the outer periphery of the boundary portion P between the proximal end side cylindrical jacket 30 and the distal end side cylindrical jacket 40.

  The twill-woven fabric used for the proximal-side cylindrical jacket 30 has a soft texture and excellent flexibility. On the other hand, the plain woven fabric used for the front end side tubular jacket 40 is hard to form and has excellent strength. Further, since the twill weave structure and the plain weave structure are different woven structures, the boundary portion P between the proximal end side cylindrical jacket 30 and the distal end side cylindrical jacket 40 is disturbed, and the strength is extremely reduced. The reinforcing cloth 70 is formed integrally with the outer periphery of the boundary portion P, and has a function of compensating for a decrease in strength of the boundary portion P.

  The fire hose 10 configured in this way is used as follows. The fire hose 10 is prepared in advance with a length sufficient for fire fighting activities. The fire hose 10 is wound in a narrow space where the male metal fitting 60 is located at the center and is gently wound and small-folded. At this time, since the base end side cylindrical jacket 30 has a twill structure, even the fire hose 10 having a length sufficient for fire fighting can be folded to a size that can be transported by human hands. .

  The fire hose 10 wound in a narrow space is transported by hand to the vicinity of the fire site in the event of a fire. The fire hose 10 wound in a narrow space is placed on a floor or a stair landing in a building where a fire is occurring. The female fitting 50 is connected to a guide hose S2 extending from the fire hydrant S1, and the male fitting 60 is connected to a water discharge nozzle T. Thereafter, the fire hose S 1 is passed through the guide hose S 2, and fire water is passed through the fire hose 10. When water flow is performed, the outer peripheral side of the fire hose 10 spreads in a circular shape like a circle due to water pressure. At this time, the base end side tubular jacket 30 having a twill structure located outside the narrow winding spreads in a beautiful shape. For this reason, as shown in FIG. 2, the fire hose 10 can be pulled out from the center side. Thereafter, the fire hose 10 is pulled out by an arbitrary length and fire extinguishing activities are performed. At this time, since the portion from which the fire hose 10 is drawn out is the front end side tubular jacket 40 having a plain weave structure, it is not damaged by friction with the floor surface or the stairs.

  According to the fire hose 10 according to the present embodiment, even when used in a fire fighting strategy from a narrow winding, a hose having a length sufficient for fire fighting is used due to the flexibility of the proximal cylindrical jacket 30. It can be transferred by hand. When water is passed and spread in a circular shape, the base end side tubular jacket 30 is flexible and spreads in a clear shape so that the fire hose 10 can be pulled out from the center portion of the shape. Moreover, since the front end side cylindrical jacket 40 which forms the part pulled out in the case of fire fighting activities has sufficient strength, it is possible to add sufficient strength to the fire hose 10 to withstand friction with the road surface. Become.

  As described above, according to the present invention, the hose body is formed of a base end side cylindrical jacket having a twill structure and a front end side cylindrical jacket having a plain weave structure, thereby using a narrow winding for a fire hose. It is possible to coexist the strength, flexibility, and flexibility characteristics required for the fire fighting strategy.

  The present invention is not limited to the above embodiment. For example, in the above-described example, the boundary portion between the proximal-side cylindrical jacket and the distal-side cylindrical jacket is reinforced using the reinforcing cloth, but can be reinforced using resin. Of course, various modifications can be made without departing from the scope of the present invention.

  DESCRIPTION OF SYMBOLS 10 ... Fire hose, 20 ... Hose main body, 30 ... Base end side cylindrical jacket, 40 ... Front end side cylindrical jacket, 50 ... Inflow part, 60 ... Outflow part, S ... Fire extinguisher supply part, S1 ... Fire hydrant, S2 ... guide hose, T ... water discharge nozzle.

Claims (1)

In the fire hose that guides the fire extinguisher from the fire extinguisher supply part to the water discharge nozzle,
A hose body having a shape in which a base end side cylindrical jacket having a twill structure and a front end side cylindrical jacket having a plain weave structure communicate with each other;
An inflow portion provided in communication with the base end portion of the hose body, and detachably formed with the extinguishing agent supply portion;
An outflow portion provided in communication with the tip of the hose body, and detachably formed with the water discharge nozzle;
A fire hose comprising a reinforcing portion that is positioned at a boundary portion between the proximal end side cylindrical jacket and the distal end side cylindrical jacket and reinforces the boundary portion.

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